Safety Recall T36 NHTSA 17V 435 Alternator Diode Thermal

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  • Date:21 May 2020
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2012 2014 WK Jeep Grand Cherokee NOTE This recall applies only to the above vehicles equipped with Electro Hydraulic Power Steering EHPS and a 3 6L engine Sales Code ERB or 5 7L engine Sales Code EZH or ECZ and a 160 Amp alternator Sales Code BAB or 180 Amp alternator Sales Code BAD or 220 Amp alternator Sales Code BAJ built from August 23 2010 through July 04 2014 MDH 082308

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Safety Recall T36 Alternator Diode Thermal Fatigue Page 2. The alternator on about 442 000 of the above vehicles may experience diode. thermal fatigue failure due to cyclical loads induced by EHPS When the diodes. fail the alternator will no longer supply electrical energy to the vehicle and may. lead to a vehicle stall without warning Failed diodes may also develop a resistive. short circuit that can result in heat smoke and or fire originating within the. alternator, The alternator part number must be inspected on all involved vehicles Vehicles. found with the suspect alternator will have it replaced with a new alternator. containing improved diodes on all affected vehicles. Alternate Transportation, Dealers should attempt to minimize customer inconvenience by placing the owner. in a loaner vehicle if inspection determines that alternator replacement is required. and the vehicle must be held overnight, Safety Recall T36 Alternator Diode Thermal Fatigue Page 3. Parts Information,Part Number Description,CSZET361AA Alternator 160A LC LD 5 7L only. CSZET362AA Alternator 180A LD LX WD WK 3 6L only,CSZET363AA Alternator 180A LD LX 5 7L only.
CSZET364AA Alternator 220A WD WK 3 6L only, For 2013 and 2014 Model Year LC LD LX Vehicles 5 7L Only. Part Number Description, 68163849AB Antifreeze Coolant premix 50 50 MS 12106. NOTE one gallon can top off approximately 4 vehicles. For 2011 and 2012 Model Year LC LD LX Vehicles 5 7L Only. 68048953AB Antifreeze Coolant concentrate MS 9769, NOTE one gallon can top off approximately 8 vehicles. Parts Return, Core return is required for this campaign for purchases made AFTER December 1. 2017 Return the alternator to MOPAR Core Return Center for core credit. NOTE Any dealer purchases prior to December 1 2017 do not need to be. returned because dealers were not assessed core charges. Safety Recall T36 Alternator Diode Thermal Fatigue Page 4. Special Tools, The following special tools are required to perform this repair.
NPN wiTECH micro pod II,NPN Laptop Computer,NPN wiTECH Software. Safety Recall T36 Alternator Diode Thermal Fatigue Page 5. Service Procedure,A Inspect Alternator,1 Open the hood. 2 Use the following procedure to inspect the part number tag on the alternator. If the part number on the part number tag is 421000 0801 421000 7021. 421000 7041 421000 7042 421000 7051 or 421000 7052 no further action is. required Close hood and return the vehicle to the customer. If the part number on the part number tag is not 421000 0801 421000 7021. 421000 7041 421000 7042 421000 7051 or 421000 7052 replace the. alternator assembly Continue with Section B LD LX Models with 3 6L. Engine Section C LC LD LX Models with 5 7L Engine or Section D. WD WK Models with 3 6L Engine, If the part number tag on the alternator is not legible missing or the vehicle has. an aftermarket remanufactured alternator replace the alternator assembly. ALTERNATOR CHECK,PART NUMBER TAG THIS PART, Figure 1 Alternator Part Number LD Shown Others Similar. Removed From Vehicle for Photographic Purposes Only. Safety Recall T36 Alternator Diode Thermal Fatigue Page 6. Service Procedure Continued, B Replace Alternator LD LX Models with 3 6L Engine.
1 Disconnect and isolate the,SERPENTINE,negative battery cable DRIVE BELT. 2 Rotate the accessory drive belt,tensioner counterclockwise. until it contacts its stop and,remove the accessory drive belt. then slowly rotate the tensioner,into the free arm position. ALTERNATOR,CAUTION Do not let the,tensioner arm snap back to.
the free arm position severe ACCESSORY DRIVE,BELT TENSIONER. damage may occur to the,tensioner Figure 2 Accessory Drive Belt Tensioner. 3 Remove and save the alternator upper retaining bolts Figure 3. ALTERNATOR UPPER ALTERNATOR,RETAINING BOLTS ASSEMBLY. Figure 3 Alternator Upper Retaining Bolt, Safety Recall T36 Alternator Diode Thermal Fatigue Page 7. Service Procedure Continued, 4 Remove the insulator cover from FIELD WIRE ELECTRICAL.
the B output terminal at the CONNECTOR,rear of the alternator Figure 4. 5 Carefully remove and save the,B terminal retaining nut at the. rear of the alternator and remove,the B terminal,6 Depress the field wire electrical. connector locking tab at the rear,of the alternator and disconnect. the field wire electrical,connector Figure 4 B INSULATOR.
7 Raise the vehicle on an, appropriate hoist Figure 4 Alternator Electrical Connections. 8 Remove and save the underbody splash shield retainers then remove the. underbody splash shield Figure 5,UNDERBODY SPLASH,Figure 5 Underbody Splash Shield. Safety Recall T36 Alternator Diode Thermal Fatigue Page 8. Service Procedure Continued,ALTERNATOR LOWER,RETAINING BOLT. ALTERNATOR, Figure 6 Lower Alternator Retaining Bolt viewed from under vehicle. 9 Remove and save the alternator lower retaining bolt Figure 6. 10 For Rear Wheel Drive RWD vehicles separate the alternator from the. engine mounting bracket then remove the alternator from the engine. compartment, 11 For All Wheel Drive AWD vehicles perform the following steps to remove.
the alternator from the engine compartment,a Lower the vehicle on the hoist. b Loosen the radiator cap on the coolant bottle, c Push the upper radiator hose aside while removing the alternator from the. engine compartment, Safety Recall T36 Alternator Diode Thermal Fatigue Page 9. Service Procedure Continued, 12 For All Wheel Drive AWD vehicles perform the following steps to install. the alternator to the engine compartment, a Push the upper radiator hose aside while placing the new alternator into.
position in the engine compartment,b Tighten the radiator cap on the coolant bottle. 13 For Rear Wheel Drive RWD vehicles perform the following steps to install. the alternator to the engine compartment, a Position the new alternator to the engine and install the alternator lower. retaining bolt finger tight,b Lower the vehicle on the hoist. 14 Install the alternator upper retaining bolts and tighten the bolts to 25 N m. 15 Connect the field wire electrical connector to the rear of the alternator. 16 Position the generator B terminal eyelet to the alternator output stud install. the retaining nut and tighten to 13 N m 115 in lbs. 17 Install the insulator cover onto the B output terminal. 18 Raise the vehicle on the hoist, 19 Tighten the lower alternator retaining bolt to 25 N m 19 ft lbs. 20 Position the underbody splash shield and install the underbody splash shield. Safety Recall T36 Alternator Diode Thermal Fatigue Page 10. Service Procedure Continued,21 Lower the vehicle from the hoist.
22 Rotate the accessory drive belt tensioner counterclockwise until it contacts the. stop and install the accessory drive belt onto the pulleys and slowly release the. CAUTION When installing the accessory drive belt be sure the belt is. routed correctly The water pump may rotate in the wrong direction if the. belt is installed incorrectly This will cause the engine to overheat Refer. to belt routing label located in engine compartment for proper accessory. drive belt routing, Also never force an accessory drive belt over a pulley rim using a. screwdriver The synthetic fiber of the accessory drive belt could be. 23 Connect the negative battery cable and tighten the retaining nut to 13 N m. 115 in lbs, 24 Connect the wiTECH scan tool and start a session. 25 Using the wiTECH scan tool verify that the new alternator is charging. 26 Check for Diagnostic Trouble Codes DTCs,27 Clear all DTCs. 28 Remove the wiTECH scan tool from the vehicle, 29 Close hood and return the vehicle to the customer. Safety Recall T36 Alternator Diode Thermal Fatigue Page 11. Service Procedure Continued, C Replace Alternator LC LD LX Models with 5 7L Engine.
1 Disconnect and isolate the negative battery cable. 2 Rotate the accessory drive belt tensioner clockwise until it contacts the stop and. remove the accessory drive belt then slowly rotate the tensioner to the free arm. CAUTION Do not let the tensioner arm snap back to the free arm. position severe damage may occur to the tensioner, 3 Using an appropriate hoist raise and support the vehicle. 4 Remove and save the front underbody splash shield retainers then remove and. save the underbody splash shield Figure 7,SPLASH SHIELD. Figure 7 Underbody Splash Shield, Safety Recall T36 Alternator Diode Thermal Fatigue Page 12. Service Procedure Continued,5 Remove the transmission cooler tube MOUNTING. retaining clamp at the right BOLTS,crossmember and position the.
transmission cooler tube aside,6 Remove and save the nut from the. alternator support bracket Figure 8, 7 Loosen the alternator support bracket ALTERNATOR. SUPPORT BRACKET,retaining bolt completely,Figure 8 Alternator Support Bracket. 8 Loosen the remaining lower alternator retaining bolt completely Figure 8. 9 Lower the vehicle, 10 Depress the field wire connector locking tab at the rear of the alternator and. disconnect the field wire connector, 11 Remove the insulator cover from B output terminal at the rear of the.
alternator, 12 Remove the B terminal retaining nut at the rear of the alternator and remove. the B terminal, Safety Recall T36 Alternator Diode Thermal Fatigue Page 13. Service Procedure Continued,PINCH OFF COOLANT COOLANT. PLIERS SUPPLY HOSE BOTTLE, Figure 9 Pinch Off Coolant Bottle Coolant Supply Hose. 13 Pinch off the coolant bottle,coolant supply hose Figure 9 RADIATOR.
HOSE CLAMP,14 Remove the upper radiator hose,clamp at the thermostat housing. 15 Disconnect the upper radiator HOSE,hose from the thermostat. housing hose fitting Figure 2 Radiator Hose Clamp, Safety Recall T36 Alternator Diode Thermal Fatigue Page 14. Service Procedure Continued, 16 Loosen the upper alternator retaining bolt completely then remove the alternator. with bolts and bracket from the vehicle, CAUTION Use extreme care not to scratch the black anticorrosion.
coating on the brake tubes located at the antilock brake pump. 17 Clean any spilled coolant from the vehicle, 18 Transfer the mounting bolts and bracket to the new alternator Figure 8. 19 Place the new alternator with bolts and bracket into position and install the. upper alternator retaining bolt finger tight,20 Install upper radiator hose and clamp. 21 Raise and support the vehicle, 22 Position the alternator support bracket Figure 8 to the engine mount install. the retaining nut finger tight, 23 Tighten both lower alternator retaining bolts to 54 N m 40 ft lbs. 24 Tighten the alternator support bracket to engine mount retaining nut to. 28 N m 21 ft lbs, 25 Position transmission cooler line and install the transmission cooler line retainer.
clamp to the right crossmember, 26 Position the underbody splash shield and install the retainers. 27 Lower the vehicle, 28 Tighten the alternator upper retaining bolt to 54 N m 40 ft lbs. 29 Position the alternator B terminal eyelet to the alternator output stud install. the retaining nut and tighten to 14 N m 10 ft lbs, 30 Install the insulator cover onto the B output terminal. Safety Recall T36 Alternator Diode Thermal Fatigue Page 15. Service Procedure Continued, 31 Connect the field wire connector to the rear of the alternator. 32 Rotate the accessory drive belt tensioner clockwise until it contacts the stop. install the accessory drive belt onto the pulleys and slowly release the tensioner. CAUTION When installing the accessory drive belt be sure the belt is. routed correctly The water pump may rotate in the wrong direction if the. belt is installed incorrectly This will cause the engine to overheat Refer. to belt routing label located in engine compartment for proper accessory. drive belt routing, Also never force an accessory drive belt over a pulley rim using a.
screwdriver The synthetic fiber of the accessory drive belt could be. 33 Remove the hose pinch off pliers,34 Fill the engine cooling system. 35 Connect the negative battery cable and tighten the nut to 5 N m 45 in lbs. 36 Start the engine with the radiator cap removed from the hot bottle. 37 Allow the engine to fully warm up and then add additional coolant as required. 38 Install hot bottle radiator cap, 39 Connect the wiTECH scan tool and start a session. 40 Using the wiTECH scan tool verify that the new alternator is charging. 41 Check for Diagnostic Trouble Codes DTCs,42 Clear all DTCs. 43 Remove the wiTECH scan tool from the vehicle, 44 Close the hood and return the vehicle to the customer.

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